Section views display details of the interior of an object after being cut open. Show the teacher your screen when you've completed the online activity for credit.

Dimensions are used to show the measurements of an object. Click the arrow to view the rules.

Dimensioning rules:These are more like guidelines but following these rules results in good dimensioning practices and therefore will be enforced on the coursework. The first rules is the most important and the rest all have roughly equal importance.

Dim a Length Only Once

Don’t repeat dims on each view. Determine the best view to place the dim in and only dimension it there. However, don't leave any out. Also views must be aligned with each other.

Dim to Corners

Dimension to the contour or shape of the feature. This means placing the dimension in the view where you can actually see the outline of the feature being dimensioned (views with corners and edges not lines).Don’t dimension to lines like in the middle of the shape above.

Keep Dims Outside Shape

Don’t dimension to object lines (model edges). If a box were drawn around the entire view no dimensions should lie within the box. Each dimension must be pulled away from the object.

Place Shortest Dims Closest

Place shortest dimensions closest to the object. Plan your work carefully to avoid crossing extension
lines.

Uniform, Group, Diameters, Radius, etc

• Space dimensions uniformly from the object. Consecutive dimensions should be an equal distance away from the first dimension.

Pick up the Sketch Packet from the teacher. It has objects on graph paper on which you must complete the missing views and dimension them. Switch with a classmate to find errors. When you are confident that it is correct, turn it in to the teacher for credit.

AssignmentChoose an object and sketch a multiview of it on graph paper in an appropriate scale with proper line types and dimensions.

Mechanical Drafting with Autodesk Inventor

What is Inventor?Inventor allows one to design three dimensional objects, apply materials and textures to the objects and render (create a picture) of the objects.

Getting Familiar with Inventor
The teacher will help you draw some objects to learn how to use the program.

Creating Objects:(Assignments to be completed)

3-D solids are the way most engineering is currently done; where the objects are represented by solids that can even simulate the object in use.

Create the following shapes in Inventor and save them in your account folder for credit:

Create Your OwnFind something of interest that's complex enough to demonstrate most of the skills you've learned in Inventor. Measure it accurately and create a 3D model of it. Save your model in your account folder to be corrected for credit. You may also have your creation 3D printed.

Multiview & DimensionsThe teacher will demonstrate how to create a multiview and dimensions it. Create a multiview drawing of your own creation (above) and dimension it properly. Save your drawing file with the same name as your part (it will add a different extension ex. owndesign.dwg) in your account folder for to be graded.

Architectural Drafting with SketchUp

ChairsFollow the chairs tutorial video in the Classes folder to create the three chairs demonstrated. Save the file as chairs in your account folder.

3 Objects - Basic Modeling

Open a new SketchUp file. Use 'Save As…' from the 'File' pull-down menu to give your file a name and location. Save the file to your account folder(H: drive) and name it "3objects". SketchUp will add a .skp file extension.

Model any 3 of the objects in the drawings shown bellow. Follow the dimensions given to the degree possible. (don’t draw the dimensions, just use them to determine the basic sizes of things in your model) Construct the 3 models within a single SketchUp file.

Use the 'Move/Copy' tool to make 2 additional copies of any one of the objects you’ve modeled. Locate the copies at equal distances from each other.

Use the ‘Paint Bucket’ tool to color or texture each object or face as desired.

Click an image to view full size in another tab.

Villapart 1

Open a new SketchUp file. Use 'Save As…' from the 'File' pull-down menu to give your file a name and location. Save the file to your account folder(H: drive) and name it "Villa". SketchUp will add a .skp file extension. All parts of the Villa will be done in this one file.

Complete the exterior walls of the "Villa" as shown below. Refer to the drawing below for plan dimensions. Also see the villa image. Use the OFFSET tool to create an exterior wall footprint with 8" thick walls and the PUSH-PULL tool to pull the walls up 20' into 3-D.

Add "punched openings" in the walls for the locations of windows and doors. You can follow the pattern of openings in the villa photo (below) or come up with your own – your choice. When you are satisfied with your walls, make them into a group and give the group a name such as 'exterior walls'. Hide and unhide the wall group using the outliner.

Use the 'Paint Bucket' tool to color or texture the exterior and/or interior wall surfaces as desired. In order to paint or texture a specific surface that is within a group, you must 'open' the group for editing (double-click on the group).

Add a roof to your villa. It can be of the hip roof style as in the villa photo above or any other style of roof that you like such as the gable-end style being drawn in the image below. Take your time, this can be a frustrating exercise the first time through. When you are satisfied with your roof, make it into a group and give it a name such as 'roof'.

Add colors or texture to your roof as desired.

Villapart 2

Complete the next part of the Villa by adding an upper floor, stairs between floors, and interior walls as follows:

Use groups and the outliner to model the following building elements:

exterior walls

lower floor interior walls

second floor

upper floor interior walls

stairs

roof

It is not necessary to follow any particular interior floor plan for this exercise. Model a pattern of interior walls that makes sense to you within the Villa exterior wall pattern and place a stairway between the first and second floors at an interior location of your choosing.

Add any groups that you think are necessary to make your modeling go easier.

Villapart 3

Complete the Villa by adding components to your model as follows:

Model at least one window for your villa and make it a component. The size of the window component you will model is based on the size of the window openings you’ve modeled previously in your wall group. Insert your component window into the window openings in your wall group.

Also model a door component to insert into the door openings that you created.

Model as a separate component either window shutters or window trim for your window openings.

Add at least 3 components to your model from the 3D Warehouse, such as a fence, garden bench, trees, etc..

Add one dynamic component from the 3D Warehouse and insert at least 2 instances of this component showing dynamic variations.

Your Dwelling
Reproduce your house or living area in Sketchup. You will need to take rough measurements of each space. Use textures to identify the rooms - for instance tile in the bathrooms. You may also create a basic feature like a bathtub or you may insert text to label the room. You may not use components as they don't demonstrate your abilities and they increase file size exponentially. Draw exterior walls 6 inches thick and interior walls 4 inches thick. Create groups similar to what you did for the Villa. Don't forget non-living spaces like closets and furnace rooms/fireplaces.

BHS exterior
Create exterior shells of the structures of BHS and apply photos to them.

Drafting & Design 2

Inventor Review

Inventor Assembly
Most often designs involve more than a single part but up to this point we have only created stand-alone parts. In this unit, you will create the parts of a simple object and then learn how to join them together with constraints in what's known as an assembly to represent the entire object.

Your Task:In Inventor, design a coffee mug or water bottle with at least three parts. Save each part as a separate part file, for instance: body, lid, handle and hole cover.

When finished, create an assembly (one of the choices when starting a new file in Inventor) of the parts to produce the whole design. The first part you "place" will be the base so you should choose the largest part. The teacher will help you with the assembly when you are finished modeling the parts of your design, just make sure that they fit together correctly.